1. Equations

A equation is an algebraic equally that is true only for some values of the variables. These values are called solutions of the equation. 

  • Sides of an equation
  • Termsare the monomials that make up the members.
  • unknown/variableare the letters that appear in the equation.
  • Solutionsare the values that make the equality true.
  • Degree of an equationis the largest degree of the monomials that its members form. The equations are classified as follows:
        5x + 3 = 2x +1          Linear equation
        5x + 3 = 2x2 + x        Quadratic equation
        5x3 + 3 = 2x + x2       Cubic equation
        5x3 + 3 = 2x4 +1        Quartic equation
  • Equivalent equationsEquations which have exactly the same solutions.